Hi, I have the same issue, downloaded the extension manager, and found that the Zorin taskbar is not enabled due to an error, with this as the technical details:
The settings of extension zorin-taskbar@zorinos.com had an error:
TypeError: malformed UTF-8 character sequence at offset 7958
Stack trace:
loadURI@resource:///org/gnome/gjs/modules/internal/loader.js:81:21
loadURI@resource:///org/gnome/gjs/modules/internal/loader.js:283:30
resolveModule@resource:///org/gnome/gjs/modules/internal/loader.js:172:33
moduleResolveHook@resource:///org/gnome/gjs/modules/internal/loader.js:332:29
_init/GLib.MainLoop.prototype.runAsync/</<@resource:///org/gnome/gjs/modules/core/overrides/GLib.js:266:34
Do you have a fix from here?